PROBLEM -SOLVING STRATEGY

It is always useful to write down a reaction scheme, for example  

If asked to calculate concentrations of A, make a table according to the following scheme  

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The Online Learning Center is a comprehensive exclu sive website that provides a wealth of electronic re sources for instructors and students alike For students the OLC features tutorial problem solving strategies and assessment exercises for every chapter m the book that were developed by Ian Hunt and Rick Spinney from the University of Calgary You can also access the Essential Student Partner from the OLC Log on at WWW mhhe com/carey... 

Problem solving strategies and skills are em phasized throughout Understanding is continu ally reinforced by problems that appear within topic sections For many problems sample solu tions are given... 

Definition / An expert system is a computer program that manipulates large amounts of symboHc knowledge using quaUtative techniques, to solve problems that can otherwise be solved only by expert human problem solvers. Expert systems capture the human problem solver s expertise in the form of domain-specific knowledge and domain-independent problem-solving strategies. 

One important human problem-solving strategy is the application of imagination or intelligent use of a chain of hypotheses to guide the search for an effective line of retrosynthetic analysis. This inductive problem-solving dimension has been discussed previously. 

C04-0044. Constmct a flowchart that summarizes the problem-solving strategy used for Example. ... 

This is a quantitative calculation, so it is appropriate to use the seven-step problem-solving strategy. We are asked to determine an equilibrium constant from standard reduction potentials. Visualizing the problem involves breaking the redox reaction into its two half-reactions ... 

If extra lessons or practice are in order, referto Practical Math Success in 20 Minutes a Day, Lessons 15 and 16, published by LearningExpress. There are three good websites that review the problem-solving strategies and give several practice problems for each strategy ... 

The site http //huisam.virtuaiave.net also has many strategies described. Scroll down and click on Problem-solving strategies. 

Go to www.fcps.k12.va.us/DeerParkES/kids/diane/Math/math. htm, and click on Problem-Solving Strategies. Scroll down, and click on the pictures to the left of each strategy for a sample problem with solution. 

Now that you have learned some important problem-solving strategies, try this set of practice problems to gauge your success. Carefully read over the answer explanations. 

You might notice that we don t have a number for nv Although in the next section we will learn how to calculate the number of moles in a sample under a given set of conditions, in this case we don t need a number for nv because our problem-solving strategy results in this term dividing out from both sides. Now, let s solve the expression for V2 and do the arithmetic ... 

This looks familiar, and that s very good. Solving pH problems for weak acids and bases is really applying the same strategy to different situations. That is why the presentations have been so repetitive. We want you to see that there is one problem-solving strategy that works for many of these applications. 

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